Study On Watered-out Zone Logging Interpretation Of Da Laoyefu Oil And Gas Field

To improve’m mansion effect of Da laoyefu oil and gas field development, provide technical guarantee for the oilfield development adjustment further, so as to correctly evaluate’m mansion of remaining oil distribution at the oil and gas fields, mining potential, increase the coincidence rate of logging interpretation of water-out reservoirs and the article to carry out the water flooded layer from the qualitative to the quantitative evaluation method research, to give full play to the logging interpretation of oil field exploration and development. This paper is aiming at geological condition of Da laoyefu oil and gas field, and setting up different models of porosity and permeability, which improve the accuracy. First comprehensive carefully analyzed’m mansion oilfield water flooded layer of physical characteristics and logging response characteristics. On the basis of rock electricity experiment,the average absolute error of porosity in Gaotaizi oil formation is 1.44%; it is 1.406% in Fuyu oil formation, both of them are within 1.5 porosity units while permeability error is within one order of magnitude. Combining core test analysis and logging data, basic characteristics of watered-out zone were analyzed and logging interpretation methods from determining the nature to quantity were set up, form processing and interpretation modules and quantitative processing and interpretation methods. Formation processing modules, namely, reservoir parameter interpretation model is established, including shale content, porosity, permeability, water saturation, irreducible water saturation, try to calculate the moisture content, etc., and compiled the corresponding explanation module, articulated on FORWORD interpretation platform According to producing data and using resistivity and acoustic wave, we set up 5- level interpretation standard for watered-out zone in Da laoyefu oilfield, which provide reference for watered-out zone. Combining this result and practical production, adjustment Wells interpretation coincidence rate of 83.3%, increased by 3.2%, good effects were reached.